546 Filices—Scolopendrium. 
many beautiful crested, frmged and variously lobed varieties. 
Common in Britain and the temperate and arctic regions of the 
north. 
Woodwdrdia orientalis is a handsome Japanese Fern of 
large size with pinnate fronds and pinnatifid pinne, and the 
sunken sori in single rows parallel with the midrib. 
5. SCOLOPENDRIUM. 
Rhizome thick, tufted. Fronds tufted, simple, coriaceous. 
Sori on the veins, in opposite transverse lines at right angles 
to the midrib. Indusium linear, double. There are nine species, 
found in temperate and tropical regions. The old Greek name. 
1. S. vulgare. Hart’s-tongue Fern.—A common species in 
hedgerows and shady places, where the ligulate fronds vary from 
6 inches to 2 feet or more in length. The varieties are very 
numerous, and many of them highly curious. This also has a 
very wide range of distribution. 
6. ASPLENIUM. 
Cucluding Céteruch and slthyviam.) 
Rhizome tufted, or slightly elongated. Fronds simple or 
compound. Sori on the veins, linear or oblong. Indusium 
linear, membranous, attached to the vein and opening inwards. 
A very large genus, including nearly 300 species, and repre- 
sented in all except the very coldest countries. The name is 
from 4, privative, and ody, spleen, in allusion to the reputed 
medicinal properties of some species. 
§ 1. EvaspLinium.—Indusium straight, narrow; margin 
entire vr erose. Frond not sculy beneath; veins free. 
1. A. Rita-murcaria. Wall Rue.—This is the little tufted 
Fern so common on walls and rocks, with irregularly bipinnate 
fronds and cuneate pinnules. 
al. Germdnicum, syn. A. alternifolium, and A. septen- 
triondle, are allied species of more erect growth, and fronds 
with narrow, linear segments. They are both rare in Britain. 
2. A. Trich6inenes.—A dwarf tufted Fern with linear pinnate 
fronds 4 to 8 inches long, and numerous oblong dark green 
pinnules. Stipes dark brown, shining. Sori oblique. Fre- 
quent in Britain on walis, banks, &c., and one of the most 
attractive of small hardy species. Distribution general in the 
north temperate zone. 
